Behaviour Shield is a purely heuristic module, isn't it? If so, the best one can do is to turn it off / remove it forever. AVG, at least (and I've used it for many years, always was overly paranoid in its heuristics)... in fact, giving it a name which initials are BS is very appropriate. To believe in heuristics, one need at least 20 different opinions, since the engines suck so much. Leave it to Virus Total on-demand. Do not use it as an always-on scanner, because that's just a PITA, nothing more. My 2¢ only, of course! Feel free to ignore. But I'd feel very dishonest with y'all, hadn't I told y'all what my experience with antivirus heuristics is.